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Adaptec AAA-UDMA RAID Controller
Adaptec AAA-UDMA RAID Controller - PCSTATS
The controller is the AAA-UDMA, a four-channel UDMA/66 RAID controller supporting up to four hard drives in RAID 0, RAID 1, RAID 0/1, and RAID 5 configurations.
Filed under: Servers Published:  Author: 
External Mfg. Website: Adaptec Mar 30 2001   D. Dee  
Home > Reviews > Servers > Adaptec AAA-UDMA

RAID 1 Performance

Now let's take a look at the controller's RAID 1 performance:





These results aren't bad at all. The read performance is, at worst, the same as that of the single-drive RAID 0. As expected, the write performance was lower, although sometimes significantly lower. Still, this is about what I'd expect from a RAID 1 array. Next, let's see how the RAID 0/1 array performed:





These are definitely another set of disappointing results. The ideal RAID 0/1 array should be a little slower than the ideal two-drive RAID 0 array. This one is, at best, as fast as a single drive, and is in many cases slower. It looks like you'd do better by using two RAID 1 arrays instead of a RAID 0/1 array, unless you really need a single huge volume for storage.

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Contents of Article: Adaptec AAA-UDMA
 Pg 1.  Adaptec AAA-UDMA RAID Controller
 Pg 2.  A little about RAID
 Pg 3.  Initialization time for the array
 Pg 4.  The full specs
 Pg 5.  Three Drives improve performance
 Pg 6.  RAID 0 Performance
 Pg 7.  — RAID 1 Performance
 Pg 8.  OS Supported
 Pg 9.  Software management
 Pg 10.  CI/O software
 Pg 11.  RAID 5 benchmarks
 Pg 12.  processor usage
 Pg 13.  Conclusions

 
Hardware Sections 


 
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